Number of volunteer hours dedicated towards managing, monitoring,
and conserving San Franciscoís biodiversity.

Number of square feet of the worst invasive species removed from natural
areas.

Number of surviving indigenous native plant species planted in developed
parks, private landscapes and natural areas.

Abundance and species diversity of birds, as indicated by the Golden
Gate Audubon Societyís Christmas bird counts.

An upward-pointing arrow indicates that the measurement should rise
if the City is moving in the right direction; a downward-pointing arrow indicates
that the measurement should fall.

These indicators, sampled on a regular basis, will give a birdís-eye view of whether
San Francisco is moving toward or away from a sustainable future. Of course, none
of the topics are completely covered by the few listed indicators, and there are
certainly infinitely more things that could be tracked. These ongoing measures are
meant to give an overall indication of whether the City is moving in the right direction,
and provide a way of measuring significant trends without entailing major new expense
for data-collection. Baselines for these indicators have yet to be researched.